Pemko KCFM83HD1 Full Mortise Hinge 83 Inches Grade 1

Product Description

The PEMKO KCFM83HD1 is a Heavy Duty Grade 1 full mortise continuous hinge designed for high-traffic commercial door applications. Running 83 inches in length, this hinge spans the full height of a standard commercial door frame, distributing load evenly along the entire door edge rather than at isolated knuckle points. The satin aluminum clear anodized finish provides corrosion resistance and a clean, professional appearance suited to aluminum storefront, hollow metal, or wood door systems. Installation is handled by commercial door hardware specialists or finish carpenters working in new construction or retrofit projects.

Full mortise continuous hinges are specified where door weight, frequency of use, or security requirements exceed the capacity of standard butt hinges. The KCFM83HD1 is well-suited for commercial entry doors, stairwell doors, and corridor doors in schools, hospitals, office buildings, and similar facilities where Grade 1 performance ratings are required by specification or code. The 83-inch length accommodates standard commercial door heights without field cutting in most applications.

Key Features

• Heavy Duty Grade 1 rating for demanding, high-cycle commercial door installations
• Full mortise design mounts flush into door and frame edge for a clean profile
• 83-inch continuous length distributes door weight evenly along the full height
• Satin aluminum clear anodized finish resists corrosion and maintains appearance over time
• Continuous hinge construction eliminates concentrated stress points found on standard butt hinges

Compatibility

Designed as an OEM-style replacement or new-installation continuous hinge for commercial full mortise door applications requiring an 83-inch Grade 1 rated hinge.

Installation Notes

Full mortise continuous hinges require a routed or milled mortise on both the door edge and frame to sit flush. This work is typically performed by commercial door hardware installers or experienced carpenters using a router and straightedge guide. Ensure the door is properly supported and blocked before removing any existing hardware. Fastener selection should be appropriate for the door and frame material; consult local building codes and the door manufacturer specifications for required hardware grades.